BIND - BIND is by far the most widely used DNS software on the Internet.
Free DHCP Server - A DHCP Server is a protocol server for TCP/IP networks that supplies IP addresses to other...
dnsmasq - Dnsmasq is a lightweight, easy to configure DNS forwarder and DHCP server.
TFTPD32 - A free tftp and dhcp server for windows, freeware tftp server
PowerDNS - PowerDNS offers open source DNS software, services, and support.
haneWIN DHCP - haneWIN DHCP Server is a great platform that provides a BOOTP/ DHCP server entirely based on RFC 2131.